Abstract:
This research was initiated after receiving authorization to extract data from
LMK Resources by DGPC for acquiring migrated seismic lines and well logs of well
Joyamir-04 of Chakwal. The rationale of the study was to estimate and investigate the
seismic velocities behaviour in subsurface. By using the techniques such as the
interpretation of seismic sections, petrophysical and rock physical analysis
respectively, it was concluded that the fault is a north dipping south verging fault
which is followed by small back thrusts caused by the continuing force coming from
the Indian plate towards the Eurasian plate and the fractured Carbonates of the
Chorgali and Salt Range formations are thus producing reservoirs. The thrust faults in
the area show that it was deformed by compressional tectonic movement thereby salt
decollement. Chorgali Formation has fairly good porosity ranges from 20 to 30%, low
water saturation and high hydrocarbon saturation. Vp/Vs, Bulk modulus shows the
presence of limestone in the Chorgali Formation and high shear modulus shows the
presence of fractured carbonates.
